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Distribution of erosion across bedrock channels

Abstract : Lateral erosion in bedrock rivers is an important control on the shape of channel crosssections, and the coupling of channels and hillslopes. Recent observations link lateral erosionto the variability of flow. We propose two mechanisms to explain this. One is based on changing shear stress distributions within the channel with varying flood level, the other on the competition between cover and tool effects in fluvial bedrock erosion. We assess these processes for the Liwu River, Taiwan, and conclude that cover and tool effects dominate the partitioning of lateral and vertical erosion in this case.
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https://hal-insu.archives-ouvertes.fr/insu-00377279
Contributor : Isabelle Dubigeon <>
Submitted on : Tuesday, April 21, 2009 - 1:47:18 PM
Last modification on : Tuesday, July 16, 2019 - 4:44:10 PM

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J. Turowski, Niels Hovius, Hsieh Meng-Long, Dimitri Lague, Chen Men-Chiang. Distribution of erosion across bedrock channels. Earth Surface Processes and Landforms, Wiley, 2008, 33 (3), pp.353-363. ⟨10.1002/esp.1559⟩. ⟨insu-00377279⟩

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